-ing dddd ddss ddts dgsi dgsn didi dids didu digg digi digs diii diis din- ding dini dinn dins dint dinu dird dirr dirs dirt dis- disd disg disi diss dist diti dits ditt dius dnis dntt dnus dnut drgs drin drit drrs drug drui drus drut druu dsdr dsgn dsng dsri dsrr dssi dssn dsst dstn dsts dtng dtss dudd duds dudu dugs dugu duid duin duir duis duit dung dunn duns dunt durg duri durn durt duru dusi dust duts duur duut gdrt gggg ggrn ggss gidd gidi gids gigg gigi gign gigs giis ging gini ginn gins ginu gird girg giri girn girr girs girt giru gisd giss gist gits giur gius gnin gnit gnrr gnti gnus grds grid grig grin gris grit grni grrr grrs grss grug grui grun grur grus grut gsds gsis gstr gsur gudi gudu gugg gugi gugu guid guin guis gund gung gunn guns gunt gurd gurg guri gurn gurr gurs gurt guru gusd guss gust guti guts gutt gutu guus idid idig idin idir idis idss idts idun idus iggs igis igni igns ignu igri igus iiii iiis iiit iirs iisd iisi iisr iist iisu iitr iitt ind- indi inds indu ings inid inig inis init inni innr inns innu inri inrs inss inst insu intd intg inti intn intr ints intu inui inun inus irds irgs iri- irid irig irin iris irri irrs irsg irti irts irun irus isdn isds isin isis isit isnt isrg isri issi issr isss issu istd isti istr ists isus itgs itin itis itri itrs itsi itsu itur iuds iugs iuiu iusd iuss iust n-ii ndnt ndri ndsi ndss ndut ngns ngri ngsn ngtn ngts ngur nguu nidd nidi nids nigg nigs nigt niir niit niiu nind ning nini nins nirs nirt niru nisd nisi niss nist nisu niti nitr nits niur nngn nnit nnnn nnss nntn nrds nrrd nrts nsdg nsds nsdt nsin nsis nsnr nsrd nssr nsss nstd nsts nstu ntds ntis ntnd ntnu ntru ntss ntsu nttr ntui nudd nudi nugs nuin nuit nung nunn nuns nunt nurd nuri nurn nurr nurs nurt nuru nusi nuss nust nusu nuts nutt nutu rdgs rgds rgit rgtr rgts ridd ridi rids rigg rigi rigs rigu riin riis rind ring rinn riri rirs risd risi riss rist risu riti rits ritt ritu rius rnds rngs rnin rnnt rntd rnut rrrr rrun rsdd rsdg rsds rsid rsis rsnn rsnr rsts rstu rtdt rtgs rtnd rtns rtss rtts rudd rudi ruds rugg rugi rugs ruid ruin ruis ruit rund rung runi runn runs runt rurd ruri rurs ruru rusi russ rust rusu ruti ruts rutt rutu ruud ruun s-ii sdds sdgs sdrs sdss sdsu sggg sggs sgsd sgss sgts sidd sidi sidr sids sigd sigg sigi sign sigs siit sind sing sini sinn sins sint sinu siri sirr sirs sirt siru sisd sisi siss sist sisu sit- sitd siti sitn sits sitt situ siui sius siut snid snig snir snit snns snrs snsd sntr snug snur snus sris srni srnn srsd srtr ssdd ssgs ssgt ssid ssin ssis ssit ssns ssrg ssri ssrs sssi ssss sstd ssts stds stgr stid stig stir stis stit stnd stng stnn stnr stns strd stri strn strs stru stsi stss sttd sttr stud stug stun stur stus stut sudd sudi suds sug- sugg sugi suid suig suin suir suis suit sun- sund sung suni sunn suns sunt sunu sur- surd surg suri surn surr surs surt suru sus- susd susi suss sust susu suti sutu suus tdis tdri tdss tgts tidd tids tigi tigr tigs tiit tiiu tind ting tini tinn tins tint tinu tird tiri tirr tirs tiru tisi tiss tist titi tits titt titu tndd tngs tnts tnut tri- trig trin tris trit trng trsd trsi trst trtr trud trug trun trus trut truu tsgt tsid tsig tsin tsis tssg tssi tssr tsst tsts tsui tsun ttss tttt tudi tudu tugg tugs tugu tuig tuin tuis tuit tuiu tund tung tuni tunn tuns tunu turd turg turi turn turr turs turt turu tusd tusi tuss tust tuti tuts tutt tutu uddi udds udid udig udin udir udsd udts udun uggs uggt ugis ugni ugri ugur uguu uint uirr uisd uist uits undi unds ungu uni- unii unin unir unis unit unni unns unrs uns- unsg unst unts unus unut urds urdu urgi urgu urin uris uriu urni urns urri ursi urss ursu urts urun urur urus urut usds usdt usin usis usnr usnu ussr usss usst ussu usti usts usui usun usus utid utin utis utri utti uttu utug uuni uuri uusi uuuu